One Plumbing Stack, Three Kitchens: Pest Control Across West Town, Wicker Park and Ukrainian Village

Polish Downtown, the fire refugees and 187,000 people

Most of West Town lay inside the city limits early, and after the 1871 fire thousands of families rebuilt here, outside the burned district. Germans and Scandinavians came first. Then Poles made the blocks around Milwaukee, Ashland and Division the center of Polish Chicago, with St. Stanislaus Kostka and Holy Trinity as anchors and Division Street nicknamed Polish Broadway. Ukrainians, Italians and later Puerto Rican and Mexican families followed. By 1930 the community area held about 187,000 people, and until the 1960s it was the most populous in the city.

That density is the root of West Town's pest story. Builders squeezed cottages, two-flats, three-flats and four-story walk-ups onto 25-foot lots, often with a rear house behind the front one, and every lot backed onto an alley. The Kennedy Expressway cut through in 1960, displacing residents and leaving long embankments. Disinvestment, arson and redlining followed in the 1970s. Then came the rebound: artists in cheap lofts in the 1980s, gut rehabs in the 1990s and new condos after 2000. The population fell to about 81,000 in 2010 and has since grown back to roughly 88,000.

The result is a century and a half of building types side by side, many now carved into condos. Their shared walls, shared basements and shared plumbing are the reason one family's pest problem so often becomes the whole building's. A cottage owner, a condo board and a landlord with a three-flat will each start in a different place, but they are usually fighting the same few pests moving through the same century-old gaps.

German cockroaches and the old pipe chases

In most of Chicago people link German cockroaches with big apartment complexes. In West Town they are mostly a two-flat, three-flat and walk-up problem, and the cause is how those buildings were put together. Cast-iron drain stacks and steam or hot-water risers run straight up through every floor in one shared chase. The gaps around them were never sealed, and a century of plaster patching has not closed them. A colony that starts behind a second-floor refrigerator can be under the first-floor sink within weeks and in the garden unit's bathroom soon after.

Gut rehabs rarely fix this. Contractors replace kitchens and drywall but often leave the original chase open behind the new cabinets, so a converted condo building can share pests as freely as the old flats did. Converted lofts near the river have their own version: long horizontal utility runs, shared mechanical shafts and ground-floor trash rooms that connect every unit on a floor.

That is why one unit treating alone so often fails. Gel baits and insect growth regulators work very well against German cockroaches, but only when every kitchen and bathroom on the affected stack is treated in the same visit. A good provider will ask to inspect the units above and below, place bait in voids behind cabinets, at pipe escutcheons and under radiator covers, seal the penetrations at each floor and come back a couple of weeks later for nymphs that hatched from egg cases. Over-the-counter foggers make things worse by scattering roaches into neighboring units.

Rats along the Kennedy, the river, the rails and the 606

Norway rats are West Town's most widespread outdoor pest, and the map explains it. The North Branch riverbank, the Kennedy Expressway's embankments and ramps, the Union Pacific and Metra corridors along the south edge and the landscaped slopes of the Bloomingdale Trail on the north all give rats long strips of rarely disturbed soil. Alleys lined with old garages and shared carts feed into each of them. Rats burrow under garage slabs, in small rear gardens and beneath back porches, then forage up and down the alley at night.

Construction keeps them moving. Each new foundation dug on a former lot pushes out the colony that lived there, and neighbors on the same alley often notice burrows within weeks. Lasting control works block by block: locked, anchored bait stations along fences and garages, collapsed and treated burrows, sealed slab edges, tight door sweeps and closed cart lids. File 311 requests for alley baiting and broken-cart replacement. When one owner treats and the neighbors do not, rats shift next door and return later.

Raccoons and opossums use the same corridors, especially on the western blocks closer to Humboldt Park and along the 606. They den in detached garages with gaps at the roofline, in the void above rear porch ceilings and in uncapped chimneys on older two-flats. A sealed garage roof edge, a stainless chimney cap and hardware cloth under rear stairs keep them from settling in. Licensed wildlife specialists handle removal under Illinois rules, checking for young in spring before any opening is closed.

Pigeons, sparrows and squirrels on landmark facades

West Town has more city landmark districts than most community areas: Wicker Park, designated in 1991, Ukrainian Village in 2002 with later extensions, East Village in 2006, and the Pulaski Park fieldhouse and grounds. Ornate fronts mean ledges. Rock pigeons roost on cornices, window hoods, bay tops and limestone sills, and their droppings stain stone and clog gutters. House sparrows and European starlings push nests into gaps where a gutter meets a cornice or into open dryer and bath vents, which can bring bird mites into the unit. Dried pigeon droppings can carry fungi that cause respiratory illness, so cleanup should be damp and masked.

Bird work on a protected facade calls for low-profile stainless spikes, tension wire or netting fastened into mortar joints rather than stone, and never adhesive gels that stain limestone. Gray squirrels chew into wood cornices and roof returns on the Victorian houses near Wicker Park and on blocks with big parkway trees; one-way doors and paintable metal patches are the standard fix. Exterior changes that need a city permit in a landmark district go through the Commission on Chicago Landmarks, so ask before anything visible is added to the front of the building.

Stone foundations, garden units and mice

Many of the oldest buildings stand on rubble-stone or soft common-brick foundations whose mortar has been washing out for generations. Those basements stay cool and damp. House mice come in through the failed joints and around gas and water lines, nest in storage lockers and behind boilers, and climb the pipe chase into first-floor kitchens. Garden apartments feel it first. Oriental cockroaches come up through floor drains and around old laundry tubs, and house centipedes, silverfish and millipedes appear after heavy rain.

Trapping alone will not hold in these buildings. Entry points at the foundation and around pipes need to be packed with steel mesh and sealed, and the mortar repointed with a soft, lime-based mix suited to old brick. Clearing a two-foot strip along each basement wall makes droppings easy to spot and lets traps sit where mice actually travel. A dehumidifier from May through September and covered floor drains cut the moisture insects sharply.

Mansion, greystone, walk-up or loft: where each one leaks

An inspection should start with the building type, because each has its own weak points. A provider who knows that a greystone's trouble begins at the limestone ledges and the rear frame porch, while a loft's begins in the mechanical shafts, finds the source faster. Use this as a starting map. Mention the type, the age and whether the building has been gut-rehabbed when you call, since a rehab changes where the old gaps are hidden.

• Victorian house on Hoyne or Pierce: wood cornices and brackets for squirrels, tall chimneys for raccoons and bats, stone foundations for mice
• Greystone two-flat or three-flat: ledges and bay tops for pigeons, rear frame porches pulling away from brick, garden units with floor drains
• Brick walk-up or Queen Anne two-flat: shared drain stacks and radiator risers, wooden rear stairs, basement storage lockers
• Workers cottage: open stud bays, gaps at the sill plate, unvented eaves and soft fascia
• Converted loft or newer condo: mechanical shafts, trash rooms and chutes, garage entries and roof decks where pigeons nest under equipment

The West Town year

Heated buildings keep German cockroaches active all year, and the alleys keep rats busy in every season. What changes is which other pests join them, and where. Moving season deserves its own line, because rental turnover is heavy and pests travel up the rear stairs with furniture and boxes. A warm fall or a wet spring can shift the outdoor items by a few weeks, so treat the months as a guide rather than a schedule.

• March and April: rats rebuild burrows along fences, gardens and the 606 slopes; squirrels give birth in cottage attics
• May and June: odorous house and pavement ants, pigeons and sparrows nesting on ledges and vents, carpenter ants in damp rear porches
• July and August: peak alley rat activity, oriental cockroaches in garden units, roaches in hot top-floor kitchens
• May and late August to September: moving season brings bed bugs and cockroaches in used furniture
• October and November: house mice enter stone basements and first-floor walls
• December to February: indoor season, and the best time for facade and garage repairs

A checklist for shared buildings

Several of these steps need cooperation between floors or between neighbors on the same alley. Go through the list with the other units, the condo board or the landlord before treatment is scheduled, so baiting, sealing and cleanup happen in the same week instead of one floor at a time. Owners of rental flats can fold several of these items into lease turnover routines, which is when units are empty and easiest to seal.

• Seal gaps around radiator pipes and plumbing escutcheons on every floor, with a removable sealant so later repairs stay easy
• Ask the association how often trash rooms and chutes are cleaned and treated
• Keep cart lids closed, place carts on concrete and request replacements through 311
• Seal garage slab edges and fit a tight sweep under the overhead door
• Screen basement floor drains and run water into unused drains monthly
• Inspect used furniture in the gangway before carrying it upstairs
• Get landmark staff approval for any vent covers or bird netting visible from the street

Who calls, and what the visit involves

In West Town, the first question is who controls the shared spaces. In a condo building, the association controls basements, trash rooms, roof decks and garages, so roach and rodent work should go through the board, and many loft buildings already have a standing service contract. In a rented walk-up, the city's landlord and tenant ordinance generally assigns extermination to the owner, and renters should put complaints in writing and prepare units by emptying under-sink cabinets and pulling appliances a few inches from the wall.

Expect a first appointment to take longer than in a single-family house. The technician usually walks the basement and rear porch first, then each unit, mapping where droppings and roach evidence are worst. Rat work includes the alley and neighboring garages, with locked stations and at least one follow-up. Bird and squirrel work on cornices may need a lift and is usually scheduled ahead, while a rat or squirrel inside a unit is often handled the same day if a technician is free.